if __name__ == '__main__':
    fi = open('关山月.txt', 'r',encoding='utf-8')
    fo = open('关山月-诗歌.txt', 'w',encoding='utf-8')
    txt = fi.read().replace('\n', '')
    ls = txt.split("。")
    print(ls)
    # 在新的句子之间添加换行与句号('。\n')，
    fo.write("。\n".join(ls))
    fi.close()
    fo.close()